package typesys;

import ast.Principal;

public class TopPrincipal extends Principal {

	private static TopPrincipal instance = null;
	
	public static TopPrincipal getInstance()
	{
		if (instance == null) 
			instance = new TopPrincipal();
		return instance;
	}
	
	private TopPrincipal()
	{
		super("*");
	}
}
